Articles written in Journal of Chemical Sciences
Volume 129 Issue 3 March 2017 pp 313-328 Regular Article
Expanded Perlite-Polyphosphoric acid (EP-PPA) as a novel, efficient, recyclable and eco-benign heterogeneous catalyst has been applied for the green and rapid synthesis of aryl/alkylbis(indolyl)methanes, in water, in good to excellent yields. The catalyst was characterized by XRF, FT-IR, TGA/DTG, ICP-OES, SEMEDX and pH analysis. Importantly, the newly synthesized heterogeneous solid acid catalyst can be recovered and reused six times without any significant loss in its catalytic potential. The remarkable features of thepresent methodology are high conversions, shorter reaction times, cleaner reaction profiles and simple work-up procedures.
Volume 134, 2022
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